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Abstract #1022

A Diffusion Tensor Imaging approach to investigate the effects of exercise on quadricep muscle fiber lengths

Reese A. Dunne1,2, Garry E. Gold2, and Valentina Mazzoli2
1Department of Mechanical Engineering, Mississippi State University, Mississippi State, MS, United States, 2Department of Radiology, Stanford University, Stanford, CA, United States


There is currently no established method to monitor muscle architecture throughout exercise intervention. This work investigates the value of DTI and fiber tractography to detect changes in fiber length in the quadriceps caused by resistance training. Five human subjects participated in a three-month training regimen, and DTI scans of their quadriceps were acquired. Through DTI tractography, fiber lengths were measured and compared between quadricep muscle components. There were no statistically significant changes in fiber length after three months of exercise, showing further optimization is needed to utilize DTI tractography for monitoring fiber length changes due to exercise.

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